27 Jun
2004
27 Jun
'04
9:02 a.m.
On Sun, 27 Jun 2004, Eugen Leitl wrote:
Triangulation by signal strength is one thing, triangulation by relativistic ToF (time of flight) -- while still not present in consumer gadgets -- is far more difficult to fool. Especially if it's tied into the protocol, that you're getting position fixes along with your sent packets.
You may cheat and use the geography, if suitable, to your advantage. Use a high-gain antenna and bounce the signal off a suitable cliff or building. Multipaths don't have to be enemies; pick a suitable one and use it as a cover. The added advantage is fooling both the direction and the distance.